Solubility of C<sub>60</sub> Fullerene

Abstract.We present electronic transport measurements through thiolated C 60 molecules in liquid environment. The molecules were placed within a mechanically controllable break junction using a single anchoring group per molecule. When varying the electrode separation of the C 60 -modified junctions, we observed a peak in the conductance traces. The shape of the curves is strongly influenced by the environment of the junction as shown by measurements in two distinct solvents. In the framework of a simple resonant tunneling model, we can extract the electronic tunneling rates governing the transport properties of the junctions.

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“…We note in particular that DMSO is a rather poor solvent for neutral fullerenes whereas toluene is a good one (see e.g. [22]). …”

Section: Methodsmentioning

confidence: 95%

Resonant tunnelling through a C₆₀molecular junction in a liquid environment

et al. 2005

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“…The supersaturation is a very important factor to know the nucleation and growth mechanism in -4 in mole fraction [21,22], no solubility data of C 60 in m-xylene have been reported for the lower temperatures.…”

Section: Resultsmentioning

confidence: 99%

Long-term Growth Investigation of C<sub>60</sub> Fullerene Nanowhiskers

Akasaka

Miyazawa

2011

Trans. Mat. Res. Soc. Japan

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C 60 nanowhiskers (C 60 NWs) were synthesized by liquid-liquid interfacial precipitation method (LLIP method), using m-xylene as a good solvent solution of C 60 and isopropyl alcohol (IPA) as a poor solvent of C 60 . The growth mechanism of C 60 NWs was investigated by the long-term observations using optical microscopy. In the early stage of growth, C 60 NWs grew faster and longer at 5°C than at 20°C. However as the growth time became longer, the growth rate of C 60 NWs became greater at 20°C than at 5 °C, and the longer C 60 NWs were obtained at 20°C than at 5 °C. Further, it is suggested that the growth of C 60 NWs proceeds by repeating the dissolution and reprecipitation process of C 60 NWs.

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“…Такий iнтерес викликаний низкою цiкавих вла-стивостей фулеренiв, серед яких необхiдно вiдзна-чити їх розчиннiсть y ароматичних розчинниках [4][5][6][7], що значно розширює областi їх можливого використання. Iнтерес до вивчення сумiшей з фу-леренами зумовлений, y першу чергу, технологi-чними умовами отримання та очищення фулере-нiв, а також процедурою синтезу водних систем з метою їх бiологiчного застосування [8,9].…”

Section: вступunclassified